Catamarans save on weight because the multihull design eliminates the need for a keel counterweight as the same purpose righting the ship is served by the hull spacing.

Catamaran hull design principles. In creating a chine hull first we draw it by hand adjusting the limits. Good performance under sail or power Comfort underway and at anchor. This lift is created when the hull bottom is positioned with the correct angle of attack relative to the oncoming water for it to be pushed up and onto the surface.

In Part 1 of this. Take this one step further like Capt. Putting forward a blend of high-tech technologies and know-how.

We can therefore see the shapes that the wind is going. This is a measure of the fullness of the ends of the hull. I can see how a deliberate ignorance of the first principles of marine design will get you noticed but I always presumed that tarring and feathering would follow.

Nat Herreshoff of Bristol RI did in the late 19th century. The basic principle behind a planing hull is that of the generation of sufficient hydrodynamic lift to support the vessel weight. On the other hand they will be able to produce more power than their counterparts in lighter winds and perform better.

Notice that Thidar catamaran is a round bilge hull and our design is a chine hull catamaran. While Part 1 showcased design comments from Richard Woods this second webpage on catamaran design is from a paper on How to dimension a sailing catamaran written by the Finnish boat designer Terho HalmeI found his paper easy to follow and all the Catamaran hull design equations were in one place. Wave-Piercing or Reverse Bows.

With permission from Terho Halme Naval Architect. You need to be able to count on your boat in all circumstances. But in fact you want a high Cp for high speeds.